"Pursue any dream you have and make a difference in the world," is the inspirational message from charity runner Jamie McDonald in a new video obtained by Channel 5 News.
The 27-year-old Briton completed a cross-Canada journey dressed as a superhero.
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The Conservatives have proposed a counter-extremism commission, while Labour would recruit more security and intelligence staff.
After a global IT crash caused chaos, BA says it aims to run a "near normal schedule" at Gatwick and the "majority of services" at Heathrow.
Georgina Callander's family said the government must "opens its eyes" in the wake of the attack.